发明名称 |
Signal amplification apparatus and method |
摘要 |
A signal amplification apparatus includes a first modulator configured to receive an envelope signal, use a predetermined reference level to separate the received envelope signal into a first period and a second period, digitally modulate a signal of the second period to output the digitally modulated signal to a first output terminal, and output a signal of the first period to a second output terminal. Further, the signal amplification apparatus includes a second modulator configured to mix the digital modulated signal input through the first output terminal with a phase modulated carrier signal; an envelope modulator configured to output the signal of the first period as a power supply signal; and a power amplifier configured to amplify the mixed signal output by the second modulator to output the amplified signal. |
申请公布号 |
US9295001(B2) |
申请公布日期 |
2016.03.22 |
申请号 |
US201414150084 |
申请日期 |
2014.01.08 |
申请人 |
Electronics and Telecommunications Research Institute |
发明人 |
Jang Seunghyun;Lee Sung Jun;Cho Young Kyun;Park Bong Hyuk;Jung Jae Ho;Lee Kwangchun |
分类号 |
H04B1/66;H01Q11/12;H04B1/04;H04W52/04;H04W52/24;H04W52/52 |
主分类号 |
H04B1/66 |
代理机构 |
Nelson Mullins Riley & Scarborough LLP |
代理人 |
Nelson Mullins Riley & Scarborough LLP |
主权项 |
1. A signal amplification apparatus comprising:
a first modulator configured to receive an envelope signal, use a predetermined reference level to separate the received envelope signal into a first period greater than the reference level and a second period less than the reference level, digitally modulate a signal of the second period to output the digitally modulated signal to a first output terminal, and output a signal of the first period to a second output terminal; a second modulator configured to mix the digital modulated signal input through the first output terminal with a phase modulated carrier signal input from outside the second modulator to output a mixed signal; an envelope modulator configured to output the signal of the first period as a power supply signal; and a power amplifier configured to amplify the mixed signal output by the second modulator using the power supply signal to output an amplified signal. |
地址 |
Daejeon KR |